medel.es — This same platform

We needed a platform that would simultaneously serve as (a) commercial showcase, (b) license sales system with signed downloads, (c) client area, and (d) backoffice to manage the entire catalog. Standard SaaS options (Shopify, Gumroad, WordPress) do not cover all 4 cases at once.

We built from scratch, without heavy frameworks, an MVC microframework in PHP 8.4 that includes:

• Multi-language with auto-translation: ES/EN/FR/PT/DE. Translate it once and the system keeps the translations synchronized.
• Budget calculator with 5-step funnel tracking and metrics in the admin dashboard.
• Proposal system: the client receives a private link, views the proposal, accepts/rejects it, downloads the generated PDF server-side.
• Product and app catalogue with licensing system, downloads signed one-time and verification REST API.
• Technical SEO: dynamic sitemap with hreflang, schema.org in each type of content, OG images placeholder generated with GD.
• Dashboard admin with leads, proposals, funnel, revenue widgets.

In production since 2025. This is the best demo: what you see is what we do. If it works for us, it works for you.